# A012664 (b-file synthesized from sequence entry) 0 0 1 2 2 -12 3 22 4 6888 5 -422998 6 -19858212 7 10668149182 8 -1244673483312 9 -393680785867438 10 254550574752219588 11 -30031176795810056858 12 -50358282178393089181512 13 38448631613848702263196922